Chitose weather in August

In August, Chitose sees average daytime highs of 23°C and overnight lows near 19°C, with 162 mm of rain across 12.1 wet days and about 13.7 hours of daylight. It is the 1st-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 23°C through the month. The sky is clear or mostly clear about 17% of the time in August, and the air most often feels muggy.

Daylight stretches from about 14 h 24 min at the start of August to 13 h 06 min by month's end. Set against the rest of the year, August is Chitose's 11th-clearest and 10th-windiest month. For the whole year in context, see Chitose's year-round climate.

Daytime high
23°
1st warmest
Overnight low
19°
12th coldest
Rainfall
162 mm
12.1 wet days
Daylight
13 h 48 min
4:45 AM – 6:30 PM
Cloud cover
71%
11th clearest
Wind
11 km/h
10th windiest
Solar energy
4.28 kWh/m²
Travel score
6.3
out of 10

Chitose is city in Hokkaido, Japan.

Density
165/km²
people per km²
Founded
1958

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 23°C through the month.

A typical August day in Chitose reaches about 23°C in the afternoon and slips back to 19°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 26°C. Set against its neighbours, August runs about 2°C warmer than July and about 2°C warmer than September.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12319
22319
32319
42319
52319
62319
72319
82319
92319
102319
112319
122319
132319
142319
152319
162319
172319
182319
192319
202319
212319
222319
232318
242318
252318
262318
272318
282318
292318
302318
312318

How August really feels in Chitose

Once humidity and wind are folded in, August averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Chitose weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-1° / -7°366.379.20.0
Feb-0° / -7°346.26.710.30.0
Mar / -3°548.96.511.60.1
Apr / 7010.51.513.11.6
May13° / 9510.7014.43.6
Jun17° / 12°779.3015.15.3
Jul21° / 17°11611.9014.86.0
Aug23° / 19°16212.1013.76.3
Sep21° / 15°13712012.36.0
Oct15° / 919.70.110.84.7
Nov / 689.61.49.51.4
Dec / -4°548.16.88.90.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 17% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 15% of August, with mostly cloudy or overcast conditions the remaining 68%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12872
22971
32971
42971
53070
63070
73169
83169
93169
103169
113169
123070
133070
143070
153070
163070
173169
183169
193268
203268
213268
223466
233466
243466
253565
263664
273664
283763
293763
303763
313862

Chance of precipitation in August

Any precipitation

Chitose gets around 162 mm of rain over 12.1 wet days in August, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 39% and peaks near 40% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
139
239
339
439
539
639
739
839
939
1039
1140
1240
1340
1440
1540
1640
1740
1840
1940
2040
2140
2239
2339
2439
2539
2639
2739
2839
2939
3039
3140

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the muggy band about 37% of days. Sticky, muggy-or-worse air turns up on roughly 49% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1213314113
2213304113
3213304114
4212294115
5212294115
6212294016
7212304016
8212304016
9211313916
10211313916
11211323916
12311333816
13311343815
14311343715
15311353715
16311353714
17311353614
18312363613
19313363613
20313363612
21314363512
22315363511
23416363411
24417353410
2541835349
2641935339
2741935338
2852035328
2952135317
3062236307
3162236297

Wind in August

Winds average 11 km/h in August.

Across August, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm
3112calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 24 min at the start of August to 13 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 78 minutes over August. Sunrise moves from 4:28 AM to 5:01 AM, and sunset from 6:51 PM to 6:06 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.44:286:51
214.34:296:49
314.34:306:48
414.34:326:47
514.24:336:46
614.24:346:44
714.14:356:43
814.14:366:42
914.14:376:40
1014.04:386:39
1114.04:396:38
1213.94:406:36
1313.94:416:35
1413.84:426:33
1513.84:446:32
1613.84:456:30
1713.74:466:29
1813.74:476:27
1913.64:486:26
2013.64:496:24
2113.54:506:22
2213.54:516:21
2313.44:526:19
2413.44:546:18
2513.44:556:16
2613.34:566:14
2713.34:576:13
2813.24:586:11
2913.24:596:09
3013.15:006:07
3113.15:016:06

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.28 kWh/m².

For context, solar energy here swings from a low near 1.65 kWh/m² to a high of 5.37 kWh/m² in May across the year — August's 4.28 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.5Bright
54.5Bright
64.5Bright
74.4Bright
84.4Bright
94.4Bright
104.4Bright
114.3Bright
124.3Bright
134.3Bright
144.3Bright
154.3Bright
164.2Bright
174.2Bright
184.2Bright
194.2Bright
204.2Bright
214.2Bright
224.2Bright
234.2Bright
244.1Bright
254.1Bright
264.1Bright
274.1Bright
284.1Bright
294.1Bright
304.1Bright
314.0Bright
Planning a trip in August

Hazard calendar for Chitose

In seasonPeak

In August, Chitose sits inside its pacific typhoon and rainy season season. The full year is below, with each hazard's peak months called out.

Chitose sits in the Pacific typhoon belt; the season peaks July–October.

Chitose's rainy season runs May–October, when most of the year's rain falls.

Pacific typhoon
Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is August a good time to visit Chitose?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.3
Sightseeing
1st-best month of the year
4.8
Beach & pool
1st-best month of the year

August is a reasonable time to visit Chitose for sightseeing.

What to pack for Chitose in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In August, Chitose sees daytime highs around 23°C and nights near 19°C. Worth packing: light clothes and rain gear. About 12 days see rain.

light clothesrain gear

Sea temperature near Chitose in August

The nearest coast averages about 20°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 22 km away) is warmest in August at about 20°C and coldest in March near 3°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarm
Sea temperature (°C)Comfort
Jan6Bracing
Feb4Bracing
Mar3Bracing
Apr5Bracing
May8Bracing
Jun13Bracing
Jul17Cool
Aug20Refreshing
Sep20Cool
Oct16Cool
Nov13Bracing
Dec10Bracing

UV index in Chitose in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Chitose peaks around August 18 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 19 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighHighVery highHighModerateLowAug 18UV 8Dec 19UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar3Moderate
Apr6High
May7Very high
Jun6High
Jul5Moderate
Aug8Very high
Sep6High
Oct4Moderate
Nov2Low
Dec1Low

Air quality in Chitose in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Chitose is worst in April — around 19 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (December, 8 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1119 µg/m³Dec 158 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb14Moderate
Mar19Moderate
Apr19Moderate
May18Moderate
Jun13Moderate
Jul12Good
Aug10Good
Sep9Good
Oct11Good
Nov9Good
Dec8Good
Location & terrain

Where is Chitose?

Chitose sits at 42.8°N, 141.7°E, 15 m above sea level, in Japan. The nearest listed city is Eniwa, 10 km away.

Topography around Chitose

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Chitose.

Within 3 km, the terrain around Chitose has only modest variations in elevation — a maximum elevation change of 59 m around an average of 26 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 260 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,859 m.

The land around Chitose is covered by artificial surfaces (46%) and trees (36%) within 3 km, trees (58%) and cropland (22%) within 16 km, and trees (58%) and water (26%) within 80 km.

3 km
59 m
16 km
260 m
80 km
1,859 m
treesgrasslandcroplandartificial surfaceswaterwetland
August weather nearby: Eniwa 10 km · Kitahiroshima 19 km · Tomakomai 21 km · Ebetsu 33 km · Sapporo 37 km · Shiraoi 39 km · Iwamizawa 43 km · Tōbetsu 46 km

Japan travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B
100 V · 50 / 60 Hz
Prices
≈ 65% of US
price level, 2025
GDP per capita
$35,951
2025
Happiness
6.1 / 10
World Happiness, 2025
Safe drinking water
99%
of population, 2024
Homicide rate
0.2
per 100k, 2023
Road deaths
3.6
per 100k/yr, 2019
Income group
High
World Bank
English
Very low
EF EPI 446
Religion
Shintoism 49%Buddhism 46%other 4%Christianity 1%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Chitose (42.8194°, 141.6522°, elevation 15 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).